The former New York senator lost her temper after being confronted by a member of Greenpeace and 350 Action about accepting contributions from fossil fuel companies on Thursday afternoon at SUNY Purchase.

In the video, she said: “I do not have... I have money from people who work for fossil fuel companies. I'm so sick! I'm so sick of the Sanders campaign lying about this. I’m sick of it!”

Greenpeace later posted the video of the interaction online.

This is not the first time 350 Action or Greenpeace has challenged Clinton about fossil fuel donations. The organizations raised the issue at a December town hall in Iowa and a New Hampshire town hall in February.

According to CNN, Nick Merrill, a Clinton spokesperson said that the campaign “has not taken a dollar from oil and gas industry PACs or corporations. The simple fact is that the Sanders campaign is misleading voters with their attacks."

During her speech at the state university, Clinton was interrupted by Sanders protesters who began yelling: “If she wins, we lose.”

A deadpan Clinton replied: “Oh, I know. Bernie people came to say that."

She then added: “I have earned nine million votes in this election. I have one million more votes than Donald Trump and I have 2.5 million more votes than Senator Sanders.”